The normal value of lung volume for women is 2500-3000ml. Lung volume refers to the maximum volume of air inhaled in a single session per unit of time, and the sum of tidal volume, compensatory inspiratory volume and compensatory expiratory volume. Each person’s lung capacity is different and varies greatly, and is related to age stage, stature, exercise, respiratory muscles and lungs, thorax and other factors. Women who are in young and middle age and in good physical condition have relatively large lung capacity. Athletes who regularly participate in sports, especially swimming, may have a larger than normal lung capacity. Low lung capacity can easily lead to hypoxia in the body, especially hypoxia during labor or poor tolerance of exercise and labor. You can improve lung capacity by participating in appropriate physical exercise, and likewise expand your chest through long-distance running, swimming or long jumping, thus increasing lung capacity.